Module: LazyGraph::NodeProperties

Defined in:
lib/lazy_graph/node/node_properties.rb

Class Method Summary collapse

Class Method Details

.build(members:, invisible:) ⇒ Object

Builds an Anonymous Struct with the given members Invisible members are ignored when the struct is serialized



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# File 'lib/lazy_graph/node/node_properties.rb', line 5

def self.build(members:, invisible:)
  Struct.new(*members, keyword_init: true) do
    define_method(:initialize) do |kws|
      members.each { |k| self[k] = kws[k].then { |v| v.nil? ? MissingValue::BLANK : v } }
    end

    define_method(:key?) do |x|
      !self[x].equal?(MissingValue::BLANK)
    end

    define_method(:[]=) do |key, val|
      super(key, val)
    end

    define_method(:members) do
      members
    end

    define_method(:invisible) do
      invisible
    end

    def to_hash
      to_h
    end

    define_method(:each_key, &members.method(:each))

    def dup
      self.class.new(members.each_with_object({}) { _2[_1] = _2[_1].dup })
    end

    def get_first_of(*props)
      key = props.find do |prop|
        !self[prop].is_a?(MissingValue)
      end
      key ? self[key] : MissingValue::BLANK
    end

    def pretty_print(q)
      q.group(1, '<Props ', '>') do
        q.seplist(members.zip(values).reject do |m, v|
          m == :DEBUG && (v.nil? || v.is_a?(MissingValue))
        end) do |member, value|
          q.group do
            q.text "#{member}="
            value.respond_to?(:pretty_print) ? q.pp(value) : q.text(value.inspect)
          end
        end
      end
    end
  end
end